Class CloudWatchCounters

Configuration parameters

• connections:
  • discovery_key: (optional) a key to retrieve the connection from IDiscovery
  • region: (optional) AWS region
• credentials:
  • store_key: (optional) a key to retrieve the credentials from ICredentialStore
  • access_id: AWS access/client id
  • access_key: AWS access/client id
• options:
  • interval: interval in milliseconds to save current counters measurements (default: 5 mins)
  • reset_timeout: timeout in milliseconds to reset the counters. 0 disables the reset (default: 0)

References

• *:context-info:*:*:1.0 (optional) ContextInfo to detect the context id and specify counters source
• *:discovery:*:*:1.0 (optional) IDiscovery services to resolve connections
• *:credential-store:*:*:1.0 (optional) Credential stores to resolve credentials

see

Counter (in the Pip.Services components package)

see

CachedCounters (in the Pip.Services components package)

see

CompositeLogger (in the Pip.Services components package)

Example

let counters = new CloudWatchCounters();
counters.config(ConfigParams.fromTuples(
    "connection.region", "us-east-1",
    "connection.access_id", "XXXXXXXXXXX",
    "connection.access_key", "XXXXXXXXXXX"
));
counters.setReferences(References.fromTuples(
    new Descriptor("pip-services", "logger", "console", "default", "1.0"),
    new ConsoleLogger()
));

counters.open("123", (err) => {
    ...
});

counters.increment("mycomponent.mymethod.calls");
let timing = counters.beginTiming("mycomponent.mymethod.exec_time");
try {
    ...
} finally {
    timing.endTiming();
}

counters.dump();